Length adjustment mechanism for a strap



FIG. 1 is a perspective view of a length adjustment mechanism for a strap according to the present design wherein a headband is illustrated in dotted lines;

FIG. 2 is a top plan view of the length adjustment mechanism for a strap of FIG. 1;

FIG. 3 is a front elevational of the length adjustment mechanism for a strap of FIG. 1;

FIG. 4 is a bottom plan view of the length adjustment mechanism for a strap of FIG. 1;

FIG. 5 is a rear elevational view of the length adjustment mechanism for a strap of FIG. 1;

FIG. 6 is a right side view of the length adjustment mechanism for a strap of FIG. 1; and,

FIG. 7 is a left side view of the length adjustment mechanism for a strap of FIG. 1. 

I claim the ornamental design for the length adjustment mechanism for a strap, as shown and described. 